Isaak is a distinctive boys' name in United States, ranking #921 in 2003 with 179 recorded births. The name reached its all-time peak in 2009 with 218 births ranking #940. Since 1996, the popularity has increased by 84.5%. In 2003, approximately 1 in every 11,035 boys born was named Isaak. FALLING Recent data shows the name is currently falling.